Which conjunctivitis is classically associated with atopy and presents with itching and tearing but not purulent discharge?

Which conjunctivitis is classically associated with atopy and presents with itching and tearing but not purulent discharge?

• A. Vernal Keratoconjunctivitis
• B. Bacterial Conjunctivitis
• C. Viral Conjunctivitis
• D. Trachoma

Answer: (A)

Vernal keratoconjunctivitis is an allergic form of conjunctivitis that shows up most clearly in people with atopy, such as eczema, asthma, or allergic rhinitis. The hallmark is intense itching, often with tearing, but the discharge is not purulent. This combination—strong itch with tearing and minimal pus—fits VKC well, especially in children and young adults who frequently have atopic tendencies.

On exam you’d expect to see signs of allergic inflammation beyond symptoms: cobblestone-like papillae on the upper tarsal conjunctiva and limbal changes called Horner-Trantas dots. The condition often has a seasonal pattern, spring being a common time for flares, though it can also be perennial in some individuals. The atopic link helps explain why itching is so prominent and why discharge is not the thick, purulent type seen with bacterial infections.

To contrast, bacterial conjunctivitis typically presents with purulent discharge and lid crusting; viral conjunctivitis usually has watery discharge with possible preauricular adenopathy and tends to spread; trachoma presents with follicular conjunctivitis that over time can cause scarring and eyelid changes. Understanding the itchy, tearing, non-purulent profile in the context of atopy points you toward this specific allergic form.